78179464
Oct 29, 2002
Sep 2, 2003
Active Trademark
CALIBRATED TEST KITS, CONSISTING PRIMARILY OF CALIBRATED ORIFICE TUBE, CALIBRATION CHART, FAN, MANOMETERS, TUBING, AND DYE, FOR MEASURING THE LEAKAGE AND PERFORMANCE OF HEATING, VENTILATING, AND AIR CONDITIONING DUCTS
Electrical and Scientific Apparatus